Chinese giant CXMT, the world's fourth-largest memory chip manufacturer, staged the largest initial public offering (IPO) on the Shanghai Stock Exchange since 2010 on Monday, July 27, in a debut that redefined China's role in the global semiconductor race.
Based in Hefei, the capital of the eastern province of Anhui, CXMT went public with a 466% increase in value on its first day of trading, raising US$8.5 billion with the sale of 6.7 billion shares.
With this, the largest Chinese producer of DRAM — the chips used in devices ranging from servers to cameras — reached a market value of US$484 billion, instantly becoming one of the most valuable companies in the sector, behind South Korean companies SK Hynix and Samsung Electronics , as well as the American company Micron .
CXMT operates three DRAM wafer factories in Beijing and Hefei and stated in its IPO prospectus that it was "committed to continuously expanding production capacity and increasing its share of the global market."
The research firm SemiAnalysis estimated that CXMT would have the capacity to start producing 350,000 new wafers per month by the end of this year — a figure close to Micron's capacity of 385,000 — and reach 500,000 by the end of 2028.
With this, SemiAnalysis predicts that CXMT's global market share will grow to 12% next year, compared to the 9% estimated for 2025, consolidating its fourth position, behind the three largest companies.
CXMT turned profitable this year, generating 33 billion yuan (US$4.9 billion) in revenue in the first quarter alone, a stunning reversal from 37 billion yuan in accumulated losses over the past decade, as a shortage of memory chips allowed the company to obtain generous price increases from its customers.
The leap not only surprised investors — it repositioned the company as a strategic player in the race for chips that power artificial intelligence, at a time when global demand for advanced components is growing at an unprecedented rate.
Until recently, CXMT was seen as a latecomer, limited by a lack of scale and a technological gap compared to its South Korean and American competitors. Its progress was consistent, but insufficient to compete for global contracts with these rivals.
The IPO – the largest in mainland China since the Agricultural Bank of China in 2010 – radically changes this scenario. The company has the option to sell another 1 billion shares.
“We knew it would be a big IPO,” said Tilly Zhang, a technology and industrial policy analyst at Gavekal Dragonomics in Beijing. “Even so, the enthusiasm of the people is surprising.”
According to Zhang, his profits came mainly from selling low-cost chips used in home electronics, because the major chip manufacturers were focused on high-bandwidth memory chips used in AI data centers.
Fight for market share
In practice, CXMT joins the group of strategic suppliers of advanced components, with the potential to compete for space in global AI contracts.
With access to billions of dollars, CXMT gains the capacity to accelerate research projects, expand factories, develop advanced lithography processes, and invest in high-bandwidth memory technologies, essential for training increasingly complex AI models.
The international context reinforces the importance of the debut. Two weeks earlier, SK Hynix held an IPO on the New York Stock Exchange, raising over US$26 billion, which should expand its production capacity of HBM, the memory chips used in Nvidia's most advanced GPUs.
CXMT is also developing HBM chips, but it lags behind its global competitors, largely because US export controls have prevented it from accessing the more advanced manufacturing tools of ASML, based in the Netherlands.
Some investors and analysts have warned that with increased Chinese production, memory chip prices could fall, posing a threat to established DRAM manufacturers such as Samsung and SK Hynix.
SK Hynix already dominates this segment and seeks to consolidate its leadership in a rapidly growing market. CXMT, now with strengthened its financial resources, enters this competition with the ambition of reducing the technological gap and gaining market share in a sector that has become vital to global digital infrastructure.
“There is still no mass production of these chips,” Zhang said. The rise of CXMT represents a success in Beijing’s effort to build its own domestic AI supply chain, shielded from US export controls on key technologies.
Prices for dynamic random access memory, or DRAM, have skyrocketed due to high demand from artificial intelligence companies. With chip shortages, manufacturers are raising prices on everything from iPhones and computers to cars.
Concerned about losing sales to price-sensitive consumers, Apple CEO Tim Cook and his top executives presented President Donald Trump and other U.S. officials with a plan to use chips from CXMT and other Chinese companies in Apple products sold outside the U.S.
Apple is in conflict with Micron, which claims that allowing CXMT to sell to American technology companies would harm the US industry.
In the United States, SpaceX also shook up the market by raising over $7 billion in its public offering, reinforcing the company's strategic role in space infrastructure and global communications. Although operating in a different sector, SpaceX shares a central point with CXMT: both represent national bets on technologies considered essential for the future.
The comparison highlights that governments and investors are willing to finance companies capable of shaping the next technological era, whether in space or in the chips that power artificial intelligence.
The debut of CXMT also puts the Shanghai Stock Exchange back on the global radar. The Chinese market hasn't seen an operation of this magnitude since 2010. The success of the IPO signals a return of investor confidence in local technology companies, after years of regulatory volatility and uncertainty about the business environment.
CXMT's challenge now is to transform the capital raised into real production and innovation capacity. It will also have to navigate a complex geopolitical environment, where international partnerships are increasingly difficult and access to cutting-edge equipment depends on delicate negotiations.
Right behind CXMT is another Chinese chip manufacturer called Yangtze Memory Technologies, or YMTC. It produces a type of chip called NAND flash memory, used for storage, such as photos in a cell phone.
YMTC plans to hold its own initial public offering in Shanghai later this year. The company is building three new factories in China that will more than double its current capacity by the end of 2027.